I am in no way naive enough to think that if companies get a tax break that they will pass that on to the consumer.
In this current corporate world of "I'm going to take what I can" I don't ever expect the corporate weenies to say, "Oh gee. Our cost of doing business just dropped 20%. Let's drop prices." And, "Since our cost of doing business went down let's not cut wage because we really want to pass that gain along to our employees."
Ever hear of a concept known as "competition"?
There's one major flaw in that argument. A little something called "competition" that will bring prices down. One company might say "OK, let's drop prices a bit to capture more market" then others follow suit, continuing until prices fall to the same profit-level as before.